John j



(No Model.)

J. J. SLOAN.

PHOTOGRAPH EXHIBITOR.

N0. 392,292. PatentedNov. 6, 1888.

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exhibiting-case for photographs, cards,. prints,

' UNITED STATES PATENT QFFICE...

JOHN J. SLOAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-THIRD TO FRANK SAUNDERS, OF SAME PLACE.

PHOTOGRAPH-EXHIBITOR.

SPECIFICATION forming part of Letters Patent No. 392,292, dated November 6, 1888.

Application filed July 13, 1888. Serial No. 279.857. (No model.)

To all whom it may concern.-

Be itknown thatI, JOHN J. SLoAN, of Ohicago, 1n the county of Cook and State of Illinois, have invented certain new and useful Improvements in Photograph-Exhibitors, of which the following is a full, clear, and exact descr ption, reference being had to the accompanying drawings, forming a part of this speciflcation, in which Figure 1 isa side view ofmy improved photograph-exhibitor. Fig. 2 is a plan view thereof. 3 is a vertical sectional view of the same in a plane at right angles to the axes of the operating-shafts. Fig. 4 is a detail view of a portion of. the case viewed from the inside and showing my improved means for supporting the shafts. Fig. 5 is aperspective view, in detail, of a portion of one of the operatmg-chains, with a part of the card-holding frames connected therewith; and Fig. 6 is an enlarged plan view, in detail, of the shaftsupporting device.

Like letters of reference in the different figures indicate like parts.

The object of my invention is to provide an or for analogous purposes, whereby the'frames in which the pictures are placed may be caused to move upon an endless chain in such a way that the pictures to be exhibited may lie in the same plane.

A further object is to so construct said device that all the card-holding frames may be removed at will from the case or placed there-- in, and that the supports therefor may be so constructed as to preserve the proper adjustment of the chains upon the revolving shafts, all of which is hereinafter more particularly described, and definitely pointed out in the claims.

Referring to the drawings, A represents a case, of sheet metal, wood, or other suitable material, which may be covered with plush or otherwise ornamented, and is preferably supported in a suitable frame, B, by means of trunnions b, so that it may be adjusted to different-positions, if desired. Within the case A, and upon opposite sides, are placed flanges a a, which are rigidly secured to the walls of the case and form grooves for the reception of removable plates D D, which are beveled or rounded upon their respective edges, as indicated at d d, (better shown in Fig. 6,) for the purpose of loosely fitting within the grooves formed by the flanges, as well as for the further purpose hereinafter stated. The plates D D are notched at their upper ends and bored at their lower ends to form bearings for shafts E and F, the former of which is made square, while the latter is preferably round, but may be made polygonal. I also prefer to make it of a greater diameter than the shaft E. The shaft E is made to extend beyond the case A, and is provided with a knob, e, Figs. 1 and 2, by which it may be rotated.

G represents a series of sheet-metal frames,

constructed as shown in Figs. 2, 3, and 5, for

the reception of cards or photographs g, Fig. 2, which may he slid therein at the ends. One side of each of said frames is soldered or otherwise rigidly secured to sheet-metal links h, which form the alternate links of endless chains,saidlinks being connected to each other by means of wire links h of a corresponding length. Said chains, which are secured to the frames G near the respective ends of the latter, are trained over the shafts E and F, as shown in Fig. 3. The shaft E is made of a diameter corresponding with the length of said links, so as to receive and fit the same, as shown in Fig. 3. This construction permits all the frames to be successively brought to the top or front, where two are caused to lie in the same plane, so that two pictures maybe seen at once, the same as in an open album.

Should the chains from any cause slide upon one or the other of the shafts upon which they are trained, so as to cause the ends of the frames to strike against and be obstructed by the plates D, the difficulty is remedied by means of the rounded or beveled surfaces d, which deflect the frames into their proper path. All of the frames, with the chains and supporting-plates D D, may be lifted at will from the grooves which hold them.

It is obvious that the number of frames may be increased or diminished according to the length of the chains. As the two exposed frames are always in the same plane, said device may by proper enlargement be employed 100 as a musierack, the music-sheets being inserted within the respective fran1es,when they may be rapidly and accurately turned by means of the knob.

Myimproved device may be cheaply eonstructed,and possesses the advantages of being simple and durable.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. The combination, with the case A, of two or more endless chains having links of equal length, frames G, rigidly attached to each alternate link, shafts E and F, the former of which is square in cross-section, plates D D, having bearings therein for mounting said shafts, and suitable grooves within the case for the reception of said plates, substantially as shown and described.

2. In a photographexhibiting case, the eombination, with the case, of the flanges a a,

plates D D, shafts E F, mounted in bearings formedin said plates, endless chains having links of equal length, and a series of cardholding frames rigidly attached to the alternate links of said chains, substantially as shown and described.

3. In a photograph-exhibiting ease,the com bination, with supporting-grooves in the sides of the case, endless chains having links of equal length, card-holding frames attached to every other one of said links, a square and a round shaft, and a knob for rotating the former, of the plates D D, having beveled or rounded surfaces (1 upon their inner faces, substantially as shown and described.

In testimony whereof I have signed this specification, in the presence of two subscribing witnesses, this 2d day of July, 1888.

JO Hb J. SLOAN.

Witnesses:

D. H. FLETCHER, J. B. HALPENNY. 

